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Posted to hdfs-issues@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2017/09/11 05:15:02 UTC
[jira] [Updated] (HDFS-12008) Improve the available-space block
placement policy
[ https://issues.apache.org/jira/browse/HDFS-12008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Junping Du updated HDFS-12008:
------------------------------
Target Version/s: 2.8.3 (was: 2.8.2)
> Improve the available-space block placement policy
> --------------------------------------------------
>
> Key: HDFS-12008
> URL: https://issues.apache.org/jira/browse/HDFS-12008
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: block placement
> Affects Versions: 2.8.1
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Attachments: HDFS-12008.patch, HDFS-12008.v2.branch-2.patch, HDFS-12008.v2.trunk.patch, HDFS-12008.v2.trunk.patch, RandomAllocationPolicy.png
>
>
> AvailableSpaceBlockPlacementPolicy currently picks two nodes unconditionally, then picks one node. It could avoid picking the second node when not necessary.
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